Michael Victor Berry (born 14 March 1941), is a mathematical physicist at the University of Bristol.
He was elected a fellow of the Royal Society of London in 1982 and knighted in 1996. From 2006 he has been Editor of the journal, Proceedings of the Royal Society A.
He is famous among other things for the Berry phase, a phenomenon observed e.g. in quantum mechanics and optics. He specialises in semiclassical physics (asymptotic physics, quantum chaos), applied to wave phenomena in quantum mechanics and other areas such as optics.